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Convert Inches to cm: Calculator & Table

Want to know how wide a 65-inch TV really is or if that new monitor will fit on your desk? Use our calculator and comprehensive size chart to find the perfect dimensions for your wall mount instantly.

📅 As of: Jan 30, 2026 ⏱️ Reading time: approx. 4 min.

📏 Inches / CM Converter

"
Swap
cm

📺 Estimated Dimensions (16:9 Format)

Width: 0 cm
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Height:
0 cm

*Dimensions include approx. 1cm bezel. Panel only.

Conversion factor: 1 inch = 2.54 cm

Looking for the right mount?

Whether it's a TV wall mount, a space-saving ceiling mount, or a flexible stand – choose the right solution for your screen size here.

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Why the diagonal can be deceiving

Manufacturer specifications in inches (e.g., "65-inch TV") always refer only to the screen diagonal. However, this doesn't tell you how wide the device actually is on your wall.

Especially when installing wall mounts, the width and height are crucial for maintaining the correct distance from furniture or windows.
Note: Our table below shows pure display dimensions. Depending on the model, add approx. 1-2 cm for the frame!

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Tip for wall mounting

Inch size alone doesn't determine which mount fits. The decisive factors are the VESA dimension (hole pattern on the back) and the weight of the TV.

Table: TV & Monitor Dimensions (Up to 100 Inches)

Inches (") Diagonal (cm) Approx. Width (cm)* Approx. Height (cm)* Typical for
24" 61 cm 53 cm 30 cm Monitor (Standard)
27" 69 cm 60 cm 34 cm Monitor (Gaming/Office)
32" 81 cm 71 cm 40 cm Monitor / Small TV
40" 102 cm 89 cm 50 cm Smaller living rooms
43" 109 cm 96 cm 54 cm Bedroom TV
48" 122 cm 106 cm 60 cm OLED Entry
50" 127 cm 111 cm 62 cm Budget Standard
55" 140 cm 122 cm 68 cm Standard living room
60" 152 cm 133 cm 75 cm Intermediate size
65" 165 cm 144 cm 81 cm Home Cinema Entry
70" 178 cm 155 cm 87 cm Large Screen Entry
75" 191 cm 166 cm 93 cm Large living room
77" 196 cm 170 cm 96 cm OLED large format
83" 211 cm 184 cm 103 cm OLED Giant
85" 216 cm 188 cm 106 cm Home Cinema XXL
98" 249 cm 217 cm 122 cm Conference / Luxury
100" 254 cm 221 cm 125 cm Projector alternative

Frequently Asked Questions (FAQ)

How do I measure the size correctly? +
Diagonally from one corner to the opposite. Measure the screen diagonal from one corner to the opposite (e.g., bottom left to top right). Important: Measure only the visible glass, not the frame! Divide the result in cm by 2.54 to get the value in inches.
Are the dimensions in the table exact? +
These are guidelines for the screen area. The dimensions represent the pure panel area in 16:9 format. Every TV has an additional bezel. On modern devices, this is very thin (0.5 - 1.5 cm), on older devices wider. Always add 2-3 cm to the width and height for safety.
What viewing distance is ideal? +
Rule of thumb: Screen diagonal times 1.5. For modern 4K/UHD TVs, the ideal distance is about 1.5 times the diagonal. For a 65-inch TV (approx. 165 cm diagonal), the ideal distance is about 2.50 meters.
Do I need stronger wall plugs for larger TVs? +
It primarily depends on the weight. Weight and leverage (especially for articulating mounts) are more critical than the inch size. Always check the total weight and use brand-name wall plugs (e.g., Fischer DuoPower).
What is the difference between 55 inch and 55 inch Class? +
It is a rounded size specification. Manufacturers often round the numbers. A "55 inch Class" TV might actually measure 54.6 inches. Check the exact spec sheet for precision mounting.
Why do monitors and TVs have the same inches but different formats? +
Because of different aspect ratios. TVs are almost always 16:9. Monitors often come in 21:9 (Ultrawide) or 16:10. Our calculator assumes the standard 16:9 format.
Does my old wall mount fit my new larger TV? +
Yes, if weight and VESA standard match. If your new TV is within the weight limit of the old mount and uses the same VESA pattern (e.g., 400x400), you can reuse it.
How do you calculate Curved TVs? +
The diagonal is measured along the curve. The actual width on the wall is slightly less than that of a flat screen of the same size because of the "bend." The difference is usually only 1-3 cm.
What does VESA mean? +
It is the standard for mounting holes. VESA stands for "Video Electronics Standards Association." A value like "VESA 400x200" means the holes are 400mm apart horizontally and 200mm vertically.
Can I use any ruler? +
Yes, but beware of scratches. Metal tips on industrial rulers can scratch the screen. Use a soft tailor's measuring tape to avoid damaging the sensitive surface.